Answer:
2. Alec Jeffreys
Explanation:
'DNA fingerprinting' or DNA typing (profiling) as it is now known, was first described in 1985 by an English geneticist named Alec Jeffreys. Dr. Jeffreys found that certain regions of DNA contained DNA sequences that were repeated over and over again next to each other.
Answer:
The term secretion refers to the cell that releases a substance into the extracellular space.
Explanation:
When a cell or organ or gland produce and secretes substance in to extracellular space,this biochemical process is called as secretion.
The secretory products may be hormone, enzymes etc.
This process facilitates the movement of material from one place to another place.
For example, Pituitary gland produce and release prolactin hormone that induces breast cells to produce lactation during sucking process done by baby.
Pituitary gland also secrete different hormones that acts on different glands like adrenal, testes, ovary, thyroid gland etc that in turn produce different hormones like adrenaline,testosterone,estrogen,progesterone, TSH,T3, hormone etc.
The cells would be dividing all the time. Hope this helps
Une théorie change avec les avancées scientifiques, les avancements culturels et les changements de point de vue de la société.
Answer:
The correct answer is- Lophotrichous
Explanation:
There are four types of bacteria based on the presence and distribution of flagella on them. The bacteria which have only one flagellum at one pole that bacteria is called monotrichous.
The bacteria which have single flagella at both sides are called amphitrichous. Bacteria that have numerous flagella distributed evenly on their body surface are called Peritrichous.
The bacteria which have a tuft of flagella attached on one side or pole are called lophotrichous. Therefore the correct answer is lophotrichous.
